OpenAI Codex CLI vs Augment Code vs Functionize

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
OpenAI Codex CLI
vs
Competitor 1
Augment Code
Competitor 2
Functionize
Competitor 3
Suggested competitors for OpenAI Codex CLI: Gemini CLI100% Qwen Code98% OpenCode97% Visual Studio Code95% JetBrains AI Assistant95% Kimi Code94% GitHub Copilot CLI94% Amp93%
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3 tools · best value per row highlighted
Your tool OpenAI Codex CLI
developers.openai.com
OpenAI Codex CLI brings the Codex coding agent to the terminal and to scripts.
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Competitor Augment Code
augmentcode.com
Augment Code is an agentic software development company whose Cosmos platform runs software agents across the development lifecycle.
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Competitor Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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6-month growth
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Global rank web
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Bounce rate lower is better
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Pricing
Model
Paid
Paid
Freemium
Starting price
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$20per month
$20per month · free tier available
Free tier
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Free trial
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API access
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Plans
GPT-6-Astra $10GPT-6.1-Sol $2GPT-6-Luna $0.10GPT-Live-1 $0.05/minute+1 more
Standard $20/moBusiness $100/moEnterprise Custom
Free FreeGrowth $20/moScale $100/moEnterprise Custom
Capabilities input → output
Input
CodeImagesText
CodeText
TextWeb pages
Output
Code
Code
Data
Skill level
Advanced
Advanced
Advanced
Categories
Development & CodeAI Coding Assistant
Development & CodeProductivity & OfficeAI AgentAI Code Review+2 more
Development & CodeAI Testing
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
4
6
7
Agents
Coding
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Testing
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Code reviews
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Test automation
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Test creation
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Test generation
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Agent creation
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Code testing
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Developer tools
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Terminal
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Test cases
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Website testing
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Community on aitoolstime
Rating
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Saves
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Reviews
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Prompts
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.